Trianions derived from secondary amines
Abstract
New β-substituted homo- and hetero-metallic trianions of the type C (
Ph)
with alkali metal cations (Li, Na, and K) are obtained from β-substituted organomercury compounds via low temperature mercury–alkali metal transmetallation; the lithiated trianion reacts regioselectively at both carbanionic carbon atoms with electrophilic agents such as D2O, EtBr, Me2S2, and Me3SiCl.